“If you could drive straight down, into a tunnel bored through the crust of the planet, you'd hit this molten mess in about an hour. It's called the asthenosphere - a sluggish sea, several hundred miles thick, on which floats the Earth's cool epidermis - the so-called tectonic plates.”

A SETI astronomer and senior astronomer at the SETI Institute, Shostak explores the search for extraterrestrial intelligence with both scientific rigor and accessible clarity. His work bridges the gap between cutting-edge research and public understanding, offering perspectives on the cosmos, human curiosity, and the future of life beyond Earth.